Every class has their own oh **** button, and no, i don't see that many juggs in regs, and the ones i see i can kill w/o problems, learn how their defenses work. Here's some advice, if they're stunned, saber ward does absolutely nothing(same for maras), so be careful when you white bar them.
If you wanna cry bout skank tanks, cry at bioware for making defensive stats completely useless in pvp.